Ball-bearing.



BALL BEzRlN.

APPUCM'IUN FILED OCT. 5,

Miam-@ 28, N15.

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Specicaton of Letters atent.

Application ledctober 5, 19M. vSerial No. 556550,77.

ed certain new and useful improvements in.

Ball-l3earings, of Whichtlie following is a specification.

' This invention relates to ball-bearings havngin-the shoulder of one or both rings a vlateral inlet through which the balls are inserted into the lmll-races.l Such ball-bearings have the 'disadvantagethat the balls running .by the shoulder' ofthe ring oppo-` site .the inlet are pressed toward the recess in the other shoulder forming the' inlet, and

the consequence is that the bearing is Qveryv Y noisy andis soon destroyed. This defect occnrs particularly in those ball-bearings in which the lateral recesses in the shoulders of thesrings do not. extend to the bottoni of the ball-races but a small elevation remains be .tweenthe bottom of the ball-race-andthe vbase of the recess as a rule the balls are forced over this elevation into the ball-race.,

or it is overcome by the ringsl being` tilted vor twisted when inserting the balls. is thel balls and rings are seriously damaged when the balls are inserted in this manner, the -greuiudicial consequences due to the balls being Apressedy when 'running against the vsmall elevations on tlierings at the inlets' are still greater than in those bearings in which theballs are introduced into the ballrace Without. pressure.

. A 'primary object of this invention isto Aprovide` Aan improved ball-bearlng of the type described to which these defects are not attached. To this end ,the ball-race of one or both rings is'flattened at the lateral inlet ,from the bottom of the ball-race to- Ward the shoulder located opposite the inlet. This dat part of the vball-race at the inlet can be made by making" the curvature .of the ball-race at that place ofla radius larger than the normal radius of curvature of the ball-race.

A ball-bearing according to the .invention has tbe advantage that the bottoms of the' ball-laces are entirely uninjured along the .entire periphery, and when the balls pass l,the .inlet they are perfectly free because the ballmrace at the inlet is enlarged toward the shoulder located opposite'. the inlet. The consequence is that in a ball-bearlng according to the invention all tendency of the balls to -rznn into the. inlet is negatived'and the balls constantly remain in their track. OW- ing to the above described advantages a ballbearingl made according to the invention has the additional advantage that i very severely loaded.

To these ends the invention consists in the construction, arrangement and combination of parts described hereinafter and pointed out in the claims.

Ono illustrative embodiment of the invention and a modification. there@2 are represented by Way of example in the accompany ing' drawing, wherein Fignre l is a side elevation of anirnproved ball-bearing` comprising tvvo rings for one row oi balls, Fie'. 2 is a cross-section taken' on the line Q-2 in Fig. 1, and Fig. 3 is an end elevation of the inner ring; 4%; is

cross-section of a inodilicatiomin which only races c and' d ci generally normal form.

it one piace both 'the shoulder e of tbe outer l ring a and also the shoulder f of the inner o a n J ring' are provided with a recess f7 and it, respectively tor inserting the balls between the rings a and 5,' if desired, these Y recesses may be closed by closure members of suitable shape., ns -llligg.. 2 clearly shows5 at the place *amore the recess fr, located the race o3 has fi/curvature diner-ent from. that of the ren 'nder'of the race? the i idinsv of cnrvatnre ib or the race at this place being larger than the normal radins ot curvature Z of the race d. The bottom of the race at the part having the radius of curvature fr: is 1 located, however, at vthe saine distance fromthe center oi the ring as the reinainder of the bottom of the race. ln the illustrative.l embodiment the race o of the outer ring' c is made the recess g exactly corresponding 'to the race d at the part havm ing the recess it. @Wing to such a cone and can no longer lforce the balls *in an.

undesirable .manner against tire recesses g Aand 7L; as is the case in other baarn' fs.

"Referring now to Fig. l? this ha- .bear

ing diers 'from that just described above lill in that only the inner ring has a recess, While the outer ring a is not provided with one. In such a ball-bearing itis suflicient when only the inner ball-race is flattened toward both sides at the place where the recess h is located, the curvature of the race at this place having the radius It'.

Although the invention has been described above With reference to ball-bearings having one row of balls it i's to be understood that it is equally applicable to bearings having two or more rows of balls.

What I claim and desire to secure by Letters Patent of the United States is l. In a ball-bearing, the combination of an inner ring having a ball-race inthe outer periphery thereof, and an outer ring having a ball race in the inner periphery thereof, the oney shoulder of one of the rings having a lateral recess constituting an` inlet for balls, and the wall of the ball-race of the ring having said inlet being flattened to- Ward the other shoulder opposite said recess, for the purpose specified.

2. In a ball-bearing, the combination of an inner ring having a ball-race in the outer periphery thereof, and an outer ring having a ball race in the inner periphery thereof, the one shoulder of each of the rings having a lateral recess constituting an inlet for balls, and each wall of the ballrace being flattened ltoward the other shoulder opposite said inlet, for the purpose specified.

8/In ra ball-bearing, the combination of an inner ring having a ball-race in the outery periphery thereof, and an outer ring having a ball-race in the inner periphery thereof, the one shoulder of one of the Irings having a lateral recess constituting aninlet for balls, the radius of curvature of that part of the ball-race in the recessed ring being larger at the said recess than elsewhere, and the maximum depth of all parts of the ball-race in the recessed ring being constant, for the purpose specified.

4. In a ball-bearing', the-combination of an inner ring having a yball-race in the outer periphery thereof, and an outer ring having a ball-race in the inner periphery thereof, the one shoulder of each of the rings having a lateral recess constituting an inlet for the balls, the radius of -curvature Vof that part of each ball-race which is located at the inlet being larger than elsewhere, and the bottom of each ball-race' constituting the circumference of a circle, for the purpose specified. v

In testimony whereof, I affix my signature in the presence of two witnesses.-

- AUGUST MAR-BECK. Witnesses WOLDEMER HAUPT, HENRY HASPER. 

